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Finding the Third Proportional to 1,392.19 and 2,097.14

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Solution

The third proportional to 1,392.19 and 2,097.14 is: 3,159.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392.19 : 2,097.14 = 2,097.14 : x
  2. Step 2: Convert to fraction form
    1,392.19/2,097.14 = 2,097.14/x
  3. Step 3: Cross multiply
    1,392.19x = 2,097.14 × 2,097.14
  4. Step 4: Simplify right side
    1,392.19x = 4,397,998.80
  5. Step 5: Solve for x
    x = 4,397,998.80/1,392.19
  6. Step 6: Final answer
    x = 3,159.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.